Low-power, transparent optical network interface for high bandwidth off-chip interconnects

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作者：

O Liboiron-Ladouceur，H Wang，AS Garg，K Bergman

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摘要：

The recent emergence of multicore architectures and chip multiprocessors (CMPs) has accelerated the bandwidth requirements in high-performance processors for both on-chip and off-chip interconnects. For next generation computing clusters, the delivery of scalable power efficient off-chip communications to each compute node has emerged as a key bottleneck to realizing the full computational performance of these systems. The power dissipation is dominated by the off-chip interface and the necessity to drive high-speed signals over long distances. We present a scalable photonic network interface approach that fully exploits the bandwidth capacity offered by optical interconnects while offering significant power savings over traditional E/O and O/E approaches. The power-efficient interface optically aggregates electronic serial data streams into a multiple WDM channel packet structure at time-of-flight latencies. We demonstrate a scalable optical network interface with 70% improvement in power efficiency for a complete end-to-end PCI Express data transfer.

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关键词：

Computer architecture Customer satisfaction Data transfer Fiber optic networks Optical interconnects Optical materials

DOI：

10.1364/OE.17.006550

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年份：

2009